Wringer



Nov. 9, 1937.

WRINGER Filed 0G13. 16

INVENTOR.

ATTORNEY.

Patented Nov. 9, 1937 UNITED STATES vWItINGrER.

Walter L. Kauffman II, Erie, Pa., assigner to Lovell ManufacturingCompany,-Ei-ie, Pa., a corporation of Pennsylvania Y Application ootober1e, 1935, serial No. 45,230

13 Claims.

Wringers as now produced are largely formed from sheet metal or m'etalshaving thin walls. It is-common to make the top bar of the wringerdetachable from the side stiles, both for the purposes of assemblyand-of providing a safety release for relieving pressure on the rolls.The pressure to which the top bar is subjected in exe erting pressure onthe rolls requires a rugged securing means between the top and the sidestiles and this is diicult to form in the metal commonly used. Thepresent invention is designed to improve the interlocking attachmentbetween the top bar of the wringer stiles.

' Features and details will appear from the speciiications and claims.

A preferred embodiment of the invention is illustrated in theaccompanying drawing as follows:

Fig. 1 shows a front elevation of the wringer, partly in sections tobetter show construction.

Fig.2 shows a section on the linel 2-2 in Fig. 1.

Fig. 3 shows a central section of the end of the top bar land the top ofone of the stiles on the line V3--3 in Fig. 4.

Fig. 4 shows a section on the linev 4 4 in Fig.. 1.

Fig. 5 shows a perspective view of the end of the top of the stile withthe top detached from 30 the stile.

Fig. 6 shows an end elevation of the top of the stile.

Fig. '7 shows a section of the end of the top` bar and top of the stileshowing a modification'of the shoulder forming lip.

Fig. 8 shows a section of the end of the top bar at the top of the stileshowing a further modication of the shoulder forming lip,

The wringer frame is made up of base I and side stiles 2 and 3, theseside Stiles being of box form in cross section. The top bar 4 is mountedvon the stile. The wringer rolls 5 and 6 are -provided with shafts 'land 8. The lower shaft 8 is 45 -journaled `in the bearing 9.' Thebearing 9 rests on a mounting I0 and the mounting I0 rests on shouldersII struck in the side walls of the stiles. The upper shaft 'l isprovided with a bearing I2 which is slidingly mounted in the stile. The

50 lower shaft 8 is driven from the powervshaft I3, receiving power fromany desirablev source. Spring I4 vrests on the top bearings I2, and ascrew I5 operates on the top bar to adjust the pressure of the spring,

55 The top bar is of channel formwith closedends,

- 24 in the top bar.

(C1. ca -.32)

the closure forming downwardly extending walls overlapping the outerfaces of the Stiles.

A release device is provided for one `end of the top bar. v The latch IBis formed with side plates l1 united by a cross plate I8. The two sideplates 15. of the latch are arranged on `each side ofthe stile. Vlilachplate has a triangularly shaped opening I9 into which extends pivotallips or lugs 20 struck up from the side wall of the stile, thuspivotally se'curingrthe latch on the stile. The lo latch plates I1 havethe latch hooks 2| 'at their upper ends and these hooks are adapted toen gage in Vturn trunnion plates 2-2, these plates bef in'g'formed onthebottom edge Vof the .releasing lever`23. The trunnions 22 extend intoVthe `triangular openings 24 in the side walls of the top bar 4, thereleasing lever having side plates ex# tending downwardly on Veach sideof the top bar and `outside vof the `latch' I6, so that the vtrunnionspass under the .hooks and` into the Vopenings 20 A spring 23a. normallyholds the Plever 23 inits'set position. The latch I6 is provided 'withshoulders 25 which engage the outeredges of 'the trunnions 22, so thatwith the lever 2'3ifin set position, the latch `I6 can become unhooked,but when the outer'end of the lever 23 is raised by depressing the inneredge of Vthe lever, the outer edges of the trunnions 22 'are liftedabove the hooks 25 and this permits the hooks 2l to slide off thetrunnion and release the top bar. This particular' release mechanismformsno' part of this invention, and the parts so far described havebeen previously formed.

VThe closed wall `ofthe opposite end ofthe top baris secured to itsstile as follows: :35 A 'lipjZ isjbent outwardly from the top of theouter 'wall of the stile. The'outer ends of `7this lip are connectedwith the vwall of the stile above the lip by webs 27, thus the lip at:its front'and Y 0 rear edges are braced, but inasmuch 'as these edgesreceive the principal .part of the Strain, the-"flip forms a very secureand strong shoulder. The under surfaceof the lip whichis'the en-'gagirigJsurfaceof theshoulderissmooth, Aso that 5 when the top isreleased, the disengagement from the under surfacevo'f the shoulder isnot obstructed. v

The topba'r -is placed over `the upper ends of `the stile, the top bartelescoping these ends. VV'The l50 end wall of the top -bar has anoutwardly extendingstabbing 2 8 forming the shoulder 29 under `tilestabbing. This shoulder `29 is adapted "to :engage the under face ,ofthe lip 26,j.the "interi- 'lockin'g'ibeing accomplished by `tilting theopp'o 5 5.

site ends of the top bar and bringing the shoulders 29 under the lips26, then swinging the free end of the bar downwardly into its normallatched position through the releasing mechanism.

In order to strengthen the end Wall of the top bar under the shoulder29, I prefer to provide a Vbridge piece 30 between the end wall and theder 29 moves outwardly upon the shoulder formed by the lip 26 and isreleased. The lip may be formed with a return bend as shown at 32 inFig. 7, may extend at right angles to the face of the stile as shown at33 in Fig. 8, or may be slightly upwardly inclined as shown in Figures 1to 6. In any event, the engagement with the lip is on a smooth surfacewhich does not obstruct the free outward movement or disengagingmovement when the release has been operated.

It is preferable to supply a locking shoulder on the top bar which willengage the inner face of the stile-and thus prevent any accidentaldisengagement of the interlocking shoulders ,between the top bar and thestile through the springing of the stile under strain. This isaccomplished in the present structure by striking up shoulders 34 in theside Walls of the top bar.v These shoulders 34 are so placed that whenthe top bar is in a set or normal position, this shoulder engages theinner face of the stile and thus prevents any inward springing of thestile and any disengaglng of the interlocking shoulders 26 and 29without the upswinging of the top bar. This up-swinging carries thelocking shoulder 34 above the top of the stile and thus permits of theproper end movement to free the top bar from the interlocking shoulders.

What I claim as new is:

1. In a 'wringen the combination of a frame comprising hollow metalstiles, one of the stiles at least having a lip bent outwardly fromthe-top of the stile to form a shoulder, the lip having a web at itsedges Vjoining the wall 'of the stile with the lip; and a top bar havinga downwardly extending end wall overlapping the outer face of the stileand having a shoulder engaging the under side of the lip. Y

2. In a wringer, the combination of a frame comprising hollow metalstiles, one of said stiles at least having a lip bent from the bottom ofthe lip outwardly to form a shoulder, the lip having webs at its edgesjoining the wall of the stile above the lip with the lip; and a top barhaving a4 downwardly extending wall overlapping the outer face of thestile, having an outwardly extending stabbing forming a shoulder underthe stabbing engaging the shoulder formed by the lip, said stabbingbeing bridged at its center and the lip having a cut-out portion toaccommodate the bridge.

3. In a wringer, the combination of a frame comprising hollow metalstiles one of said stiles at least having a lip bent from the bottom ofthe lip outwardly to form a shoulder, the lip having a web at its edgejoining the wall of the stile above the lip with the lip; a top barhaving a downwardly extending end wall overlapping the outer face of thestile and having a shoulder engaging the under side of the lip; and alocking shoulder on the top bar engaging the stile and holding theshoulders at the outer face of the stile against disengagement.

4. In a wringer, the combination of a frame comprising hollow metalVstiles, one of said stiles at least having a lip bent from the bottomof the lip outwardly to form a shoulder, the lip having a web at itsedge joining the wall of the stile above the lip with the lip; a top barhaving a downwardly extending end wall overlapping the outer face of thestile and having aVv shoulder engaging the under side ofA the lip; alocking shoulder on the top bar engaging the stile and holding theshoulders at the outer face of the stile against disengagement; and asafety release device for the opposite end of the top bar.

5. In a wringer, the combination of a frame comprising hollow metalstiles, one of said Stiles at least having a lip bent from the bottom ofthe lip outwardly to form a shoulder, the lip having a web at its edgejoining the wall of the stile above the lip with the lip; a top barhaving a downwardly extending end wall overlapping the outer hface ofthe stile and having a shoulder engaging the under side of the lip; anda lock'- ing shoulder on the top'bar engaging the inner face of thestile and locking the shoulders at the outer face of the stile againstdisengagement, said shoulder being xed and adapted to swing clear of thestile with an up-swing of the opposite end of the top bar.

6. In a wringer, the combination'of a frame Comprising side stiles; atop bar having a downwardly extending end wall overlapping the outerface of a stile, said wall and the overlapped stile having interlockingshoulders; and a locking shoulder on the top bar engaging the stile andholding the shoulders at the outer face of the stile againstdisengagement.

7. In a wringer, the combination of aframe comprising side Stiles; a topbar having a downwardly extending end Wall overlapping the 'outer faceof a stile, said wall and the overlapped stile having interlockingshoulders; and a locking shoulder on the top bar engaging the stile andholding the shoulders at the outer face of the stile againstdisengagement, said shoulder being xed and adapted to swing clear of thestile with an up-swing of the opposite end of the bar.

8. In a wringer, the combination of a frame comprising side stiles; atop bar of channel form arranged on the stiles, one end of the top barhaving the end closed and forming a downwardly extending walloverlapping the outer face of the side stiles, the side Walls of the topoverlapping the side faces of the stile; locking shoulders between theoverlapping end wall and the stile; and a locking shoulder struck up inthe side wall of the top bar and engaging the stile, holding theinterlocking shoulders against disengagement.

9. In a wringer,V the combination of a frame comprising hollow metalstiles, at least one of said stiles having ar lip bent so that itextends upwardly andoutwardly of the stile to form a shoulder; and a topbar having a downwardly extending end wall overlapping the outer face ofthe stile and having a shoulder engaging the Y, v

under side of the lip. 1

10. In a wringer, the combination of a frame comprising hollow metalstiles, at least `one of said stiles having a lip bent so that itextendsupwardly and outwardly of the stile to form a shoulder; webs at the endsof thelip joining the lip with the stile; and a top bar having adownwardly extending end wall overlapping the outer face of the stileand havingy a shoulder engaging the under Side of the lip. A 11. In aWringer, the combination of a frame omprising hollow metal stiles, atleast one of said stiles havingva lip bent so that it extends upwardlyand outwardly of the stile to form a shoulder; webs at the ends of thelip joining the lip with the stile, said web extending above the lip;and a top bar having a downwardly extending endvwall overlapping theouter face of the stile and having a shoulder engaging the under side ofthe lip.

12. In a wringer, the combination of a frame comprising hollow metalstiles, at least one o said stiles having a lip bent so that it extendsupwardly and outwardly of the stile to form a shoulder; a top bar havinga downwardly extendstile and having a shoulder engaging the under sideof the lip; and a safety release for securing Y said stiles having a lipbent so that it extends Y upwardly and outwardly of the stile to form ashoulder; and a top bar having a downwardly extending end walloverlapping the outer face of the stile and having a shoulder engagingthe under side of the lip, said top bar and frameV having engagingsurfaces locking the top bar when in normal position against endwisemovement disengaging the shoulder on the top bar from the lip. Y

WALTER L. KAUFFMAN II.

